If sin 2- - 4sin 2- then 5tan-tan- - is

sin 2α=4sin2β 5tan(α β)tan(α+β)=5sin(α β)cos(α+β)sin(α+β)cos(α β) =5(2sin(α β)cos(α+β)2sin(α+β)cos(α β)) =5(sin 2α sin 2βsin 2α+sin 2β) ...

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Trigonometric Ratios of Compound Angles

If sin 2α =...

Question

If $sin 2 α = 4 sin 2 β$ , then $\frac{5 tan (α - β)}{tan (α + β)} =$ is

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